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Regional destribution and relative frequency of the gastrin, secretin and pancreatic polypeptide-immunoreactive cells in the gastrointestinal tract of the fetus of Korean native goat
1999
Lee, H.S. (Kyungsan University, Kyungsan (Korea Republic). Faculty of Basic Science, College of Natural Science) | Ku, S.K. | Lee, J.H. (Kyungpook National University, Taegu (Korea Republic). Laboratory of Histology, College of Veterinary Medicine)
The regional distributions and relative frequencies of the gastrin, secretin and pancreatic polypeptide(PP)-immunoreactive cells in the gastrointestinal tract of the fetus(180 days of gestation) of Korean native goat were sutdied with immunohistochemical(ABC) methods. Gastrin-immunoreactive cells were detected in fundus, pylorus and duodenum and these cells were most predominant in pylorus. Secretin-immunoreactive cells were observed in pylorus, duodenum and ileum. PP-immunoreactive cells were restricted to fundus. These immunoreactive cells were situated in surfact epithelium and mucosal gland regions. The regional distribution and relative frequency of PP-immunoreactive cells was somewhat different to the adult Korean native goat. Immunoreactive cells in thesurface epithelial regions were open typed cells which were spindle shaped cells but closed typed cells which were round or/to spherical shaped cells were observed in the mucosal gland regions.
显示更多 [+] 显示较少 [-]Immunohistochemical study of neruotensin-, pancreatic polypeptide-and gastrin/cholecystokinin-immunoreactive cells in the gastrointestinal tract of the bullfrog, Rana catebeiana during developmental stages
1999
Lee, H.S. (Kyungsan University, Kyungsan (Korea Republic). Faculty of Basic Science, College of Natural Science) | Ku, S.K. | Lee, J.H. (Kyungpook National University, Taegu (Korea Republic). Laboratory of Histology, College of Veterinary Medicine)
To investigate the regional distribution and relative frequency of the neurotensin-, pancreatic polypeptide(PP)- and gastrin/cholecystokinin(Gas/CCK)-immunoreactive cells in the gastrointestinal tract of the bullfrog(Rana catesbeiana) with developmental stages, group of bullfrogs subdivided into the tadpole withhindlegs, metamorphosed bullfrog with tail, 2 weeks after metamorphosed bullfrog and adult bullfrog, were stained by immunohistochemical methods(PAP methods). Neurotensin-immunoreactive cells were observed from the pylorus of the metamorphosed bullfrog with tail, but these cells were not detected after that periods. PP-immunoreactive cells were dectected from the adult bullfrog in the pylorus, duodenum and ileum. These cells were most predominant in the pylorus. Gas/CCK-immunoreactive cells were observed from the adult bullfrog in the pylorus. According to these results, most of immunoreactive cells in the gastrointestinal tract of the bullfrog were appeared after the complete metamorphosed periods, in which the complete differentiation of structure of gastrointestinal tract were occurred, and variable changes of the regional distribution and relative frequency with developmental stages were observed.
显示更多 [+] 显示较少 [-]An immunohistochemical study on the gastro-entero-endocrine cells of the pond tortoise (Amyda sinensis)
1990
Kim, J.B. | Lee, J.H. | Lee, N.S. (Kyungpook National University, Taegu (Korea Republic). College of Veterinary Medicine) | Lee, H.S. (Taegu Oriental Medical College, Taegu (Korea Republic). Department of Biology)
Spermiogenesis and fine structure of the sertoli cell junctional specialization in the Jindo dog - (2) - Fine structure of the sertoli cell junctional specialization
1992
Park, Y.S. | Lee, J.H. (Chonnam National University, Kwangju (Korea Republic). College of Veterinary Medicine)
Spermiogenesis and fine structure of the sertoli cell junctional specialization in the Jindo dog - (1) - Studies on spermiogenesis in the Jindo dog
1992
Park, Y.S. | Lee, J.H. (Chonnam National University, Kwangju (Korea Republic). Department of Veterinary Anatomy)
Morphological studies on the dendritic cells in the mammary gland, 2. Electron microscopic observations
1988
Ryu, S.Y. (Chungnam National Univ., Taejon (Korea R.). Coll. of Agriculture) | Lee, C.S. (Kyunbook National Univ., Taegu (Korea R.). Coll of Veterinary Medicine)
In order to investigate the morphological characteristics of dendritic cells in the mammary gland of the mouse (C57 BL/6), rat (W), rabbit and cat, the fine structures of the dendritic cells have been observed by the electron microscope. The dendritic cells with the well-developed processes had an irregular shape, and lacked the desmosome. The pinocytotic vesicles and tubular invaginations of the cell membrane were frequently observed, and the mitochondria with the well-developed cristae were located in the restricted region in the cytoplasm of the dendritic cells. The nuclei of dendritic cells were indented. In the mice and rats, the dendritic cells had a few langerhans cell granules (Birbeck granules). From the above results, it is confirmed that the ATPase-positive dendritic cells in the mammary gland are the langerhans cells
显示更多 [+] 显示较少 [-]An ultrastructural study on two cases of canine leiomyosarcoma
1984
Lee, Y.S. | Lim, C.H. (Seoul National Univ., Suwon (Korea R.). Coll of Veterinary Medicine)
An ultrastructural study was to investigate on 2 cases of canine leiomyosarcoma. The nuclei of most tumor cells showed bilobate appearance. Most cells of the tumors had no distinct basement membrane. Most cells of the tumors had a degenerative rough endoplasmic reticulum. Intercellular matrix contained some amounts of collagen. Attachment areas between tumor cells were not apparent, but a few tight junction were clearly seen. Myofibrils were present in bipolar end area
显示更多 [+] 显示较少 [-]Ultrastructure of Babesia gibsoni in the erythrocyte from dogs
1991
Han, J.C. | Lee, J.M. | Chae, J.S. (Chonbuk National Univ., Chonju (Korea Republic). Coll. of Veterinary Medicine) | Yoon, C.M. (Iri Agricultural and Forestry High School, Iri (Korea Republic))
Effects of copper sulfate poisoning on the fine structure of rat liver
1990
Yoon, H.J. | Lee, S.M. | Jang, B.J. (Kon Kuk University, Seoul (Korea Republic). Department of Veterinary Medicine)